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MATLAB implementation of IGRF11 fortran code as function for calculating Earth mean magnetic field. Implementation has been modified to default to GPS reference coordinates with output B components North, East, and Vertical. Spherical harmonic coefficients are derived from downloaded Excel file.
http://www.ngdc.noaa.gov/IAGA/vmod/igrf.html
Screenshot created by Demo_igrf11syn
Cite As
Charles Rino (2026). IGRF Magnetic Field (https://uk.mathworks.com/matlabcentral/fileexchange/28874-igrf-magnetic-field), MATLAB Central File Exchange. Retrieved .
Acknowledgements
Inspired: International Geomagnetic Reference Field (IGRF) Model
General Information
- Version 1.2.0.0 (1010 KB)
MATLAB Release Compatibility
- Compatible with any release
Platform Compatibility
- Windows
- macOS
- Linux
| Version | Published | Release Notes | Action |
|---|---|---|---|
| 1.2.0.0 | date fdate variable conflict fixed. |
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| 1.1.0.0 | Error noted by Mark Shore for fyear>=2000 fixed. GHcoefficients.mat version of spherical harmonic coefficients added. Code checked against results kindly provided by Mark Shore. |
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| 1.0.0.0 |
